Home / 8,998.43-12,417.55-5,020.21

Finding the Fourth Proportional to 8,998.43, 12,417.55 and 5,020.21

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Solution

The fourth proportional to 8,998.43, 12,417.55 and 5,020.21 is: 6,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.43 : 12,417.55 = 5,020.21 : x
  2. Step 2: Convert to fraction form
    8,998.43/12,417.55 = 5,020.21/x
  3. Step 3: Cross multiply
    8,998.43x = 12,417.55 × 5,020.21
  4. Step 4: Simplify right side
    8,998.43x = 62,338,711.66
  5. Step 5: Solve for x
    x = 62,338,711.66/8,998.43
  6. Step 6: Final answer
    x = 6,927.74

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.